#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "vga.h"
#include "cpu/pic.h"
#include "cpu/idt.h"

#if defined(__linux__)
#error "You are not using a cross-compiler, you will most certainly run into trouble"
#endif
 
#if !defined(__i386__)
#error "This OS needs to be compiled with a ix86-elf compiler"
#endif

struct interrupt_frame
{
    size_t ip;
    size_t cs;
    size_t flags;
    size_t sp;
    size_t ss;
} __attribute__((packed));

__attribute__((interrupt))
static void isr0(struct interrupt_frame *frame) {
    terminal_writestring("division by zero");
    pic_send_eoi(0);
}

void kmain(void) {
    terminal_initialize();

    terminal_writestring("start");

    pic_remap(0x20, 0x28);
    idt_register_handler(0, (size_t)isr0);
    idt_init();

    volatile int a = 0/0;

    terminal_writestring("Hello, kernel World!\n");
}